NIJ body armor standard advisory notice #01-2005

SUBJECT: Poly-p-phenylene benzobisoxazole (PBO or Zylon®)

The National Institute of Justice (NIJ) hereby advises that it has identified poly-p-phenylene benzobisoxazole (commonly known as PBO or Zylon®) as a material that appears to create a risk of death or serious injury as a result of degraded ballistic performance when used in body armor. This is an NIJ Body Armor Standard Advisory Notice within the meaning of the NIJ 2005 Interim Requirements for Bullet-Resistant Body Armor (effective September 26, 2005).

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